Oil & Gas
| Tue 30 Jun 2026
Beijing, June 30 -- PetroChina Co Limited has sought patent for Micro-rotation Oil Stabilizing and Water Controlling Device and Application Method. This invention was developed by Zhao Guanghua, Chen Kaiyuan, Kang Ji-won, Fu Yunbo, Liu Mingjiang, Ge Lei, Wen Jing, Liu Jin, Liu Yaolu, Zhang Jingchen, Wang Taohan, Yuan Shuai, Lin ..